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Carbon steel corrosion inhibitor special for calcium chloride solution

A technology of calcium chloride solution and corrosion inhibitor, which is applied in the field of corrosion prevention of metal materials, can solve the problems of less corrosion inhibitors, poisonous effects of corrosion inhibitors on the human body and the environment, and low corrosion inhibition rate of corrosion inhibitors

Active Publication Date: 2016-02-24
WEIHAI XIANGYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are few reports on corrosion inhibitors for calcium chloride antifreeze, and most of them are artificially synthesized chemical reagents such as sodium nitrite, sodium bisulfite, thiourea, and urotropine.
Usually the corrosion inhibition rate of these corrosion inhibitors is not high, and some corrosion inhibitors are also toxic to the human body and the environment

Method used

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  • Carbon steel corrosion inhibitor special for calcium chloride solution
  • Carbon steel corrosion inhibitor special for calcium chloride solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Select raw materials by weight percentage

[0020] Deionized water 82.45%

[0021] Imidazoline polyoxyethylene ether 1%

[0022] Diethylaminopropanol 1%

[0023] S-Hydroxyethylthiosuccinic Acid 15%

[0024] Formaldehyde 0.05%

[0025] Alkyl polyglucoside 0.5%

Embodiment 2

[0027] Select raw materials by weight percentage

[0028] Deionized water 56.5%

[0029] Imidazoline polyoxyethylene ether 5%

[0030] Diethylaminopropanol 5%

[0031] S-Hydroxyethylthiosuccinic Acid 30%

[0032] Formaldehyde 0.5%

[0033] Alkyl polyglucoside 3.0%

Embodiment 3

[0035] Deionized water 69.475%

[0036] Imidazoline polyoxyethylene ether 3%

[0037] Diethylaminopropanol 3%

[0038] S-Hydroxyethylthiosuccinic acid 22.5%

[0039] Formaldehyde 0.275%

[0040] Alkyl polyglucoside 1.75%

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Abstract

The invention aims at providing a carbon steel corrosion inhibitor special for a calcium chloride solution. The carbon steel corrosion inhibitor special for the calcium chloride solution is prepared from, by mass percent, 1-5% of imidazoline polyoxyethylene ether, 1-5% of diethylaminoethanol, 15-30% of S-ethoxyl thiodisuccinic acid, 0.05-0.5% of formaldehyde, 0.5-3.0% of alkyl polyglucoside and 50-83% of deionized water. The corrosion inhibitor has an excellent corrosion inhibition effect on carbon steel materials in the calcium chloride solution, has a good dispersing effect and a certain antibacterial effect at the same time and is an efficient and environment-friendly carbon steel corrosion inhibitor special for the calcium chloride solution.

Description

technical field [0001] The invention relates to the technical field of anticorrosion of metal materials, in particular to a corrosion inhibitor for controlling corrosion of carbon steel in a calcium chloride solution. Background technique [0002] At present, among various refrigerants and antifreeze agents, industrial calcium chloride aqueous solution is still widely used in various types of refrigerators and equipment that needs to lower the freezing point and occasion. However, due to the certain corrosiveness of industrial calcium chloride aqueous solution. Therefore, it will pose a certain hidden danger to safe production. According to reports, due to the corrosiveness of calcium chloride aqueous solution, many safety production accidents have been caused in the chemical and petroleum industries. Therefore, it is necessary to study how to effectively slow down the corrosion of metal equipment such as carbon steel in the cooling brine system. [0003] According to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/16
Inventor 孙晓丹李洪社喻果
Owner WEIHAI XIANGYU TECH